ICD-10 Code I37.8 – Other nonrheumatic pulmonary valve disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I37.8 – Other nonrheumatic pulmonary valve disorders
What it is
This code identifies nonrheumatic disorders of the pulmonary valve that do not fit a more specific category. Use it for valve abnormalities not caused by rheumatic disease.
Clinical signs
Clinical features vary; refer to documentation. Findings may include a heart murmur, abnormal echocardiogram, or signs of pulmonary valve dysfunction noted by the clinician.
When to use this code
Use I37.8 when the record documents a pulmonary valve disorder and the provider specifies it is nonrheumatic, but no more specific code applies. It may also fit when the condition is described as another pulmonary valve abnormality not otherwise classified.
Do not use for
Do not use this code for rheumatic pulmonary valve disease or for congenital pulmonary valve disorders unless the documentation clearly supports a nonrheumatic diagnosis. Check documentation if the cause or valve lesion is unclear.
Coding tip
Confirm the valve is pulmonary and the condition is nonrheumatic before assigning I37.8.